High-efficiency refining agent for aluminum alloy and preparation method of high-efficiency refining agent

A refining agent and aluminum alloy technology, which is applied in the field of aluminum alloy processing, can solve the problems of poor degassing and slag removal effect and large destructive force of containers, and achieve good degassing and slag removal effect, low hydrogen content, and simple preparation method Effect

Inactive Publication Date: 2019-01-15
王再青
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a high-efficiency refining agent for aluminum alloys, by adding graphite, carbon powder, fluorinated rare earth compounds, etc. The problem of poor degassing and slag removal effect and great damage to the container

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A high-efficiency refining agent for aluminum alloy, the refining agent includes the following components in parts by weight: 35 parts of NaCl, 40 parts of KCl, KNO 3 33 parts, MgS 12 parts, CaSO 4 14 copies, A1F 3 8 parts, MgF 2 4 parts, Na 3 A1F 6 4 parts, Na 2 SiF 6 4 copies, C 2 Cl 6 0.6 parts, graphite 25 parts, carbon powder 20 parts, DyF 3 5 parts, CeF 3 2 servings.

[0019] The preparation method of the aluminum alloy high-efficiency refining agent comprises the following steps:

[0020] S1: Soak graphite and carbon powder in 30% hydrochloric acid for 2 hours, then filter, dry at 450°C for half an hour, crush and pass through a 20-mesh sieve;

[0021] S2: NaCl, KCl, KNO 3 , MgS, CaSO 4 , A1F 3 , MgF 2 、Na 3 A1F 6 、Na 2 SiF 6 、C 2 Cl 6 、DyF 3 , CeF 3 The powder is passed through a 10-mesh sieve, then mixed evenly with the powder in step S1, and dried at a temperature of 450°C until the water content is lower than 2.1%, to obtain an...

Embodiment 2

[0023] A high-efficiency refining agent for aluminum alloy, the refining agent is in parts by weight, comprising the following components: 60 parts of NaCl, 20 parts of KCl, KNO 3 35 parts, MgS14 parts, CaSO 4 6 copies, A1F 3 10 parts, MgF 2 7 parts, Na 3 A1F 6 11 parts, Na 2 SiF 6 5 copies, C 2 Cl 6 1.0 parts, graphite 15 parts, carbon powder 10 parts, DyF 3 6 parts, CeF 3 6 servings.

[0024] The preparation method of the aluminum alloy high-efficiency refining agent comprises the following steps:

[0025] S1: Soak graphite and carbon powder in 32% hydrochloric acid for 2 hours, then filter, dry at 500°C for half an hour, crush and pass through a 20-mesh sieve;

[0026] S2: NaCl, KCl, KNO 3 , MgS, CaSO 4 , A1F 3 , MgF 2 、Na 3 A1F 6 、Na 2 SiF 6 、C 2 Cl 6 、DyF 3 , CeF 3 The powder is passed through a 10-mesh sieve, then mixed evenly with the powder in step S1, and dried at a temperature of 500°C until the water content is lower than 2.1%, to obt...

Embodiment 3

[0028] A high-efficiency refining agent for aluminum alloy, the refining agent includes the following components in parts by weight: 40 parts of NaCl, 35 parts of KCl, KNO 3 25 parts, MgS18 parts, CaSO 4 8 copies, A1F 3 16 parts, MgF 2 8 parts, Na 3 A1F 6 3 parts, Na 2 SiF 6 8 copies, C 2 Cl 6 0.5 parts, graphite 17 parts, carbon powder 10-20 parts, DyF 3 2 parts, CeF 3 8 servings.

[0029] The preparation method of the aluminum alloy high-efficiency refining agent comprises the following steps:

[0030] S1: Soak graphite and carbon powder in 33% hydrochloric acid for 2 hours, then filter, dry at 400°C for half an hour, crush and pass through a 20-mesh sieve;

[0031] S2: NaCl, KCl, KNO 3 , MgS, CaSO 4 , A1F 3 , MgF 2 、Na 3 A1F 6 、Na 2 SiF 6 、C 2 Cl 6 、DyF 3 , CeF 3 The powder is passed through a 10-mesh sieve, then mixed evenly with the powder in step S1, and dried at a temperature of 400°C until the water content is lower than 2.1%, to obtain an ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a high-efficiency refining agent for an aluminum alloy and a preparation method of the high-efficiency refining agent and belongs to the technical field of aluminum alloy processing. The refining agent comprises, by weight, 40-60 parts of NaCl, 20-40 parts of KCl, 25-35 parts of KNO3, 12-18 parts of MgS, 6-14 parts of CaSO4, 8-16 parts of AlF3, 4-8 parts of MgF2, 3-11 partsof Na3AlF6, 4-8 parts of Na2SiF6, 0.5-1.0 part of C2Cl6, 15-25 parts of graphite, 10-20 parts of carbon powder, 2-6 parts of DyF3 and 2-8 parts of CeF3. The raw materials of the refining agent comprise graphite, carbon powder and rare earth compounds, so that the degassing and deslagging capability of the refining agent can be improved, and the aluminum alloy melt has low hydrogen content and high deslagging rate.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy processing, and in particular relates to an aluminum alloy high-efficiency refining agent and a preparation method thereof. Background technique [0002] Aluminum alloys inevitably absorb and carry gases and produce inclusions during the smelting process, which will cause a series of defects such as pores, shrinkage cavities, shrinkage porosity, cracks and leakage of castings, which will reduce the purity of aluminum alloys and affect the quality . During the production of aluminum alloy, the hydrogen atoms in the solution will spontaneously form hydrogen gas, and the hydrogen gas and inclusions will form bubbles during the solidification of the aluminum alloy solution, causing defects in the aluminum alloy components. Therefore, it is necessary to refine and purify the aluminum alloy smelting process to remove these gases and inclusions and improve the quality of the aluminum alloy. Addin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C22C1/06C22C21/00
CPCC22C1/06C22C21/00
Inventor 王再青
Owner 王再青
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap